Answer / guest

The output of a transformer will be dependent on the power
factor of secondary,but this power factor varies depending
upon load ,hence the rating is not specified in
kilowatts,instead indicated by the product current and
voltage called VA RATING and is indicated in KVA

physical identification of HT & LT panel

0 Answers   Schneider,

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Draw torque - speed curve and load curve of induction motor? mark operating point ?

0 Answers  

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I have raw material for making Compact-Choke for flourscent lamp of 40 Watts. We are suppose to get 0.4 amps output at end. but we are getting 0.42 or 0.44 amps and above. We have done many testings in different but nothing worked out. Please suggest me how to get the correct output. We are using 1. core winding of 700 windings of aluminium 2. E-shape iron fillings and I-shape iron fillings to surround the winding.

6 Answers  

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Why we use d.c. meger in a.c. induction motor?

1 Answers  

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can anyone help me regarding bout Electrical designs and calculations .. which text book should i follow as i am a trainee engineer.Description of my work which is Electrical designs like cable sizing, lighting, lightning, Gensets sizing, motor sizing, transformer sizing, generator sizing, circuit breakers, PDB MCC PCC SLDB MLDB panels, Single line diagrams mainly, substation desings, cable routing and layouts, reactive power compensations, power factor improvement, voltage drop calculations, power generations, power transmission, power distributions all calculations.Please help me

3 Answers  

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HOW TO CALCULATE THE CABLE SIZE FOR POWER CABLE, CONTROL CABLE AND INSTRUMENT CABLE

1 Answers   TurboTech,

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why transformer is rated in kva?

2 Answers  

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which %age of corona losses increses if frequency is increased to 25%.

3 Answers   ADCET, Maihar Cement,

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i have old tape recorder speakers(analog).nw i want to use it for my computer system.can i use it to my computer systeno m by using digital to analog converter??? what changes should i do in the system????

0 Answers  

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Why Ferranti effect not occurs at full load?

4 Answers   L&T,

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What is the difference between AC and DC injection methods for rotor earth fault protection

0 Answers   Asian Alliance Insurance, NBVL,

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why resistive load has unity power factor,inductive load lagging and capacitive load leading power factor?

3 Answers   OEG,

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